Hi & welcome @Makol
It seems that the armhole curve ends at point A37 and there may be a lot more dependent on it as @dogwooddenim says. Is there no way that you can correct the way that you created it? Either by changing the formula or by changing the nodes that it is dependent on?
By right-clicking on the node, select Options you can change the node dependencies:
Be very careful to do a Save as backup before doing this in case you get an error after doing this, but normally I don’t have a problem with it.
Another way, would be to first create a new A37 node(Label it X37) back in the History, just before the existing A37 node in the correct way. Edit all the dependencies to access this new node until you can delete the original point. Once it is deleted, you may edit the label to A37. Once again be very careful to Save as often during this process. You can always delete the extra copies once you are done and happy with the results.
If you wish, you may send me your .val & .vit files and I will try to delete the point for you.